In'di-go-gēn or In'di-go-gēne, n.

n. [Eng. indigo, and Gr. γένειν, to beget, generate.] White or reduced indigo, precipitated from blue indigo by the action of any deoxidating body. It occurs in a crystalline powder of a dirty white, and when moist it rapidly passes into blue indigo by absorbing oxygen. Gregory.